package com.dta.lesson32;import com.github.unidbg.AndroidEmulator;import com.github.unidbg.Module;import com.github.unidbg.linux.AndroidElfLoader;import com.github.unidbg.linux.android.AndroidEmulatorBuilder;import com.github.unidbg.linux.android.AndroidResolver;import com.github.unidbg.linux.android.dvm.*;import com.github.unidbg.linux.android.dvm.array.ByteArray;import com.github.unidbg.memory.Memory;import org.apache.log4j.Level;import org.apache.log4j.Logger;import java.io.File;import java.io.IOException;import java.io.InputStream;import java.security.MessageDigest;import java.util.ArrayList;import java.util.Enumeration;import java.util.List;import java.util.zip.ZipEntry;import java.util.zip.ZipFile;public class MainActivity extends AbstractJni { private final AndroidEmulator emulator; private final VM vm; private final Memory memory; private final Module module; public MainActivity(){ emulator = AndroidEmulatorBuilder .for32Bit() //.setRootDir(new File("target/rootfs/default")) //.addBackendFactory(new DynarmicFactory(true)) .build(); memory = emulator.getMemory(); memory.setLibraryResolver(new AndroidResolver(23)); vm = emulator.createDalvikVM(); vm.setVerbose(true); vm.setJni(this); DalvikModule dalvikModule = vm.loadLibrary(new File("unidbg-android/src/test/java/com/dta/lesson32/libdogpro.so"), false); module = dalvikModule.getModule(); vm.callJNI_OnLoad(emulator,module); } public static void main(String[] args) { long start = System.currentTimeMillis(); MainActivity mainActivity = new MainActivity(); System.out.println("load the vm "+( System.currentTimeMillis() - start )+ "ms"); mainActivity.getHash(); } private void getHash() { DvmObject dvmObject = vm.resolveClass("com/example/dogpro/MainActivity").newObject(null); //public native String getHash(String str); ///data/app/com.example.dogpro-pnF2J3-qBi8ei74vXTNXmQ==/base.apk String input = "/data/app/com.example.dogpro-pnF2J3-qBi8ei74vXTNXmQ==/base.apk"; DvmObject ret = dvmObject.callJniMethodObject(emulator, "getHash(Ljava/lang/String;)Ljava/lang/String;", input); System.out.println("result ==> "+ret.getValue()); } @Override public DvmObject newObjectV(BaseVM vm, DvmClass dvmClass, String signature, VaList vaList) { if (signature.equals("java/util/zip/ZipFile->(Ljava/lang/String;)V")){ String name = (String) vaList.getObjectArg(0).getValue(); try { if (name.equals("/data/app/com.example.dogpro-pnF2J3-qBi8ei74vXTNXmQ==/base.apk")){ ZipFile zipFile = new ZipFile("unidbg-android/src/test/java/com/dta/lesson32/app-debug.apk"); return vm.resolveClass("java/util/zip/ZipFile").newObject(zipFile); } return null; } catch (IOException e) { e.printStackTrace(); return null; } } return super.newObjectV(vm, dvmClass, signature, vaList); } @Override public DvmObject callObjectMethodV(BaseVM vm, DvmObject dvmObject, String signature, VaList vaList) {// if (signature.equals("java/util/zip/ZipFile->entries()Ljava/util/Enumeration;")){// ZipFile zipFile = (ZipFile) dvmObject.getValue();// Enumeration entries = zipFile.entries();// DvmClass ZipEntryClass = vm.resolveClass("java/util/zip/ZipEntry");// List> objs = new ArrayList<>();// while (entries.hasMoreElements()){// ZipEntry zipEntry = entries.nextElement();// objs.add(ZipEntryClass.newObject(zipEntry));// }// return new com.github.unidbg.linux.android.dvm.Enumeration(vm,objs);// } if (signature.equals("java/util/zip/ZipEntry->getName()Ljava/lang/String;")){ ZipEntry zipEntry = (ZipEntry) dvmObject.getValue(); String name = zipEntry.getName(); return new StringObject(vm,name); } if (signature.equals("java/lang/String->toLowerCase()Ljava/lang/String;")){ String s = (String) dvmObject.getValue(); String s1 = s.toLowerCase(); return new StringObject(vm,s1); } if (signature.equals("java/util/zip/ZipFile->getInputStream(Ljava/util/zip/ZipEntry;)Ljava/io/InputStream;")){ ZipFile zipFile = (ZipFile) dvmObject.getValue(); ZipEntry zipEntry = (ZipEntry) vaList.getObjectArg(0).getValue(); try { InputStream inputStream = zipFile.getInputStream(zipEntry); return vm.resolveClass("java/io/InputStream").newObject(inputStream); } catch (IOException e) { e.printStackTrace(); return null; } } if (signature.equals("java/security/MessageDigest->digest()[B")){ MessageDigest md = (MessageDigest) dvmObject.getValue(); byte[] digest = md.digest(); return new ByteArray(vm, digest); } return super.callObjectMethodV(vm, dvmObject, signature, vaList); } @Override public boolean callBooleanMethodV(BaseVM vm, DvmObject dvmObject, String signature, VaList vaList) { if (signature.equals("java/lang/String->endsWith(Ljava/lang/String;)Z")){ String value = (String) dvmObject.getValue(); String suffix = (String) vaList.getObjectArg(0).getValue(); return value.endsWith(suffix); } return super.callBooleanMethodV(vm, dvmObject, signature, vaList); } @Override public int callIntMethodV(BaseVM vm, DvmObject dvmObject, String signature, VaList vaList) { if (signature.equals("java/io/InputStream->read([B)I")){ InputStream inputStream = (InputStream) dvmObject.getValue(); byte[] bytes = (byte[]) vaList.getObjectArg(0).getValue(); try { int read = inputStream.read(bytes); return read; } catch (IOException e) { e.printStackTrace(); return -1; } } return super.callIntMethodV(vm, dvmObject, signature, vaList); } @Override public void callVoidMethodV(BaseVM vm, DvmObject dvmObject, String signature, VaList vaList) { if (signature.equals("java/security/MessageDigest->update([B)V")){ MessageDigest md = (MessageDigest) dvmObject.getValue(); byte[] bytes = (byte[]) vaList.getObjectArg(0).getValue(); md.update(bytes); return; } super.callVoidMethodV(vm, dvmObject, signature, vaList); }} 来源地址：https://blog.csdn.net/weixin_38927522/article/details/127892332
